Well-tool.



J. S. TAYLOR.

. WELL TOOL.

- APPLICATiON man AUG.5. 191-8. 1,299,392. Patented Apr. 1,1919.

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WELL TOOL.

I I APPLICATION HLED AUG-5.1918- 1,299,392" Patented Apr. 1,1919.

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JAMES S. TAYLOR, OF EUREKA, KANSAS.

WELL-TOOL.

Specification of Letters Patent.

Patented Apr. 1, 1919.

Application filed August 5, 1918. Serial No. 248,439.

To all whom it may concern:

Be it known that I, JAMns S. TAYLOR, a citizen of the United States, residing at Eureka, in the county of Greenwood and State of Kansas, have invented new and useful Improvements in Vfell- Tools, of

following is a specification.

This invention relates to an improved form of well grapple and the principal object of the invention is to provide a device or" this character for removing objects from bored wells.

Other objects of the invention are to provide a socket which may be attached to the rods used for drilling the wells, to provide jaws in said socket for gripping the objects and of means for actuating said jaws to adjust their position in the socket and to cause them to grip or release the object.

Another object of the invention is to provide a device of this character which is simple and durable in construction, reliable and eflicient in operation and one which can be manufactured and placed upon the market at a minimum cost. I

The invention also consists in certain other features or" construction and in the combina tion' and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is an elevation of the socket.

Fig. 2 is a longitudinal section thereof with the jaws in gripping position.

Fig. 3 is a like view with the jaws in releasing position.

Fig. 4 is a cross section on the hue H of Fig. 3.

Fi 5 is a view of Fig. 6 is bers.

In these views the one of the jaws. a view of one of the latch memsocket or body of the device is indicated at 1. The u per end of said body is provided with a stem 2 having a screw threaded tapered upper end 3 which is adapted to be engaged by the rods used in well boring machines, said socket or body taking the place of the bit. The socket is provided with an interior bore formed of two parts 4 and 5, the part 5 being of less diameter than the part 4 and an annular shoulder 6 being formed at the junction of the two parts. The outer end of the part a is provided with a beveled seat 7 for receiving the jaws 8. The body is provided with a pair of diametrically arranged slots 9 which extend longitudinally and communicate with the part a of the bore.

The jaws 8 each consist of a wedge shaped head 10 of curved formation with its inner face provided with teeth 11. The stem 12 of the jaw is formed of spring metal so as to permit a certain amount of movement of the heads. The upper ends of the stems are bolted to a member 13 located in the part 4: of the bore and this member is connected to one end of a coil-spring 14 located in the part 5 of the bore and having its upper end connected to a bar 15 passing through the upper end of said bore. This spring normally holds the member 13 against the shoulrg er 6 with the jaws in the position shown in I prefer to form the member 13 of a plurality of disks 16 having their peripheries beveled so that when the disks are secured together a series of steps is provided. These disks are of a thickness as will permit their insertion through the slots 9. The end of the member is formed of a cylindrical disk 17 of considerable thickness, but of such a width as will permit its entrance through the end of the part 4 of the bore. All of the disks are provided with centrally arranged openings to receive a bolt 18, the opening in the cylindrical disk 17 being screw threaded to receive the screw threaded end of said bolt. This bolt is provided with suitable I nuts and washers to connect the end of the spring 14- thereto. The cylindrical disk 17 is provided with screw threaded openings to receive the bolts 19 which engage the end of the stems.

Recesses 20 are formed at the ends of the slots 9 and these recesses receive latch mem bers 21 for holding the member 13 in adjusted position. Each of these latch members consists of a socket member 22 through which the pivot pin 23 passes, and the screw threaded part 24 engages the socket member and is provided with a beveled head 25 for engaging the steps on the member 13. The socket member 22 is provided with a spring 26 which engages an inclined wall 27 of the recess 20. This spring tends to hold the latch member out of engagement with the member 13 and with its head 25 extending into the upper end of the slot 9.

When the device is to be used the jaws are moved downwardly and held in adjusted position by swinging the latch members into engagement with one of the steps of the member 13. These latch members will be held in engagement by the tension of the spring 1d. The parts are so adjusted as to bring the jaws to a position on the seat 7 where they will form a circle of slightly larger diameter than the object to be removed from the Well. The device is then lowered into the well until the jaws pass over the object. The device is then raised so that the teeth will cause the jaws to grip the object and the weight of said object on the jaws will move the member 13 clownwardly far enough to release the latch member and the grip of the jaws on said object will prevent the spring from raising said jaws far enough to release the object. The device is then raised from the well and when ready to release the object a sudden jar downwardly will cause the spring to raise the jaws and thus release the object.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

hat I claim is 2- 1. A device of the class described comprising a socket member, having a pair of diametrically arranged slots, a movable member in said socket member, having its edges stepped, jaws carried by said member and latch members located in said slots and engaging the steps for holding the members in adjusted position. I

2. A device of the class described compris ing a socket member having a pair of diametrically arranged slots, a movable member in said socket member, having its edges stepped, jaws carried by said member, latch members located in said slots and engaging the stepped sides of said member for holding the same in adjusted position, and springs on said latch members for normally holding the same out of engagement with the member. 7

8. A device of the class described comprising a socket member having a pair of diametrically arranged slots, a movable member in said socket member composed of a plurality of disks bolted together and haw ing beveled edges, jaws carried by said member andlatch members engagingthe beveled edges of the disk for holding the member in adjusted position.

In testimony whereof I afiix my'signature.

JAMES s. TAYLOR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

